Question: Tell me mineral resource whose name has the word petroleum in their name
Paraphrase: Let me know mineral asset whose title has the word petroleum in their name
SPARQL (Wikidata): SELECT DISTINCT ?sbj ?sbj_label WHERE { ?sbj wdt:P31 wd:Q889659 . ?sbj rdfs:label ?sbj_label . FILTER(CONTAINS(lcase(?sbj_label), 'petroleum')) . FILTER (lang(?sbj_label) = 'en') } LIMIT 25 
Answer: petroleum, petroleum